Home / 102,696.39-141,707.07-57,368.79

Finding the Fourth Proportional to 102,696.39, 141,707.07 and 57,368.79

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Solution

The fourth proportional to 102,696.39, 141,707.07 and 57,368.79 is: 79,161.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,696.39 : 141,707.07 = 57,368.79 : x
  2. Step 2: Convert to fraction form
    102,696.39/141,707.07 = 57,368.79/x
  3. Step 3: Cross multiply
    102,696.39x = 141,707.07 × 57,368.79
  4. Step 4: Simplify right side
    102,696.39x = 8,129,563,140.35
  5. Step 5: Solve for x
    x = 8,129,563,140.35/102,696.39
  6. Step 6: Final answer
    x = 79,161.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.